Safe.



T. M. BRINTNALLKZ N. R. DOOLITTLE.

SAFE.

APPLIOATION FILEDNOV. 20, 1907.

Patented 0013.27, 1908.

I IN EN IJRS. WITXZSSESJ. W

THE NORRIS PETERS ca., WASHINGTON, n. ::v

UNITED STATES PATENT OFFICE.

THOMAS M. BRINTNALL, OF OAKLAND, AND NELSON R. DOOLITTLE, OF BERKELEY,CALIFORNIA.

SAFE

To all whom it may concern:

Be it known that we, THOMAS M. BRINT- NALL and NELSON R. DOOLITTLE,citizens of the United States, residing, respectively, at Oakland andBerkeley, in the county of Alameda and State of California, haveinvented certain new and useful Improvements in Safes, of which thefollowing is a specification.

The present invention relates more particularly to the production of afireproof safe, and it has for its object the construction of a safewhich insures increased fireproof protection, while at the same timematerially decreasing the cost as to the manufacture thereof, also todispense with the metallic door and jamb frames at present employed inconnection with safes, whereby a perfect union of the door and its jambis obtained.

To comprehend the invention reference should be ad to the accompanyingsheet of drawings, wherein- Figure 1 is a front view of the safe; Fig. 2a horizontal sectional plan view thereof; and Fig. 3 a broken sectionalplan view of a modified form of the door construction.

In carrying out the invention there is preferably employed the ordinaryangle frame 1 common to safe construction. Within the said angle frame1, which forms a skeleton frame for the safe, is located a layer 2 ofreinforcing wire, which serves as a basket or wire casing for theconcrete wall filling 3. This reinforcing wire, basket or casing 2surrounds and is embedded in the concrete filling or wall 3, whichfilling serves as the body proper for the safe, and takes the place ofthe solid metallic body walls ordinarily employed for such purpose inthe construction of safes. The thickness of the concrete body 3 is inproportion to the size of the safe, and suffi- Icient to insure therequisite strength there- The interior safe chamber or compartment isformed by means of the metallic box 4, which is embedded within the'concrete body 3, suitable air chambers 4 being formed between the wallsof the metallic box 4, and the concrete body 3, by means of the dishedplates 5, which plates are secured in any suitable manner to the outerwalls of the metallic box 4. The corners of the said box 4 arestrengthened and bound by means of Specification of Letters Patent.

Application filed November 20, 1907.

Patented Oct. 27, 1908.

Serial No. 402,950.

the angle plates 6. The compartment or safe chamber 5 is closed by meansof the inner safe door 7, which is hinged to the frame of the box 4 inthe usual manner.

The outer door of the safe is formed of the inner and outer face plates89, which are held apart by means of the interior wall or bed 10 ofconcrete. The said door plates are secured in position and held to theconcrete wall or bed 10 by the angle bars or straps 1112, which aresecured to and project re spectively, preferably in staggered position,from the face plates 8-9, the said angle bars or straps being embeddedwithin the concrete wall or bed 10, and serving as a bond of unionbetween the said plates and the concrete wall or bed 10.

The inner face plate 8 carries and supports the bolt-tube 13, withinwhich works the locking bolts 14, the said bolts being operated by thehandle 15, carried by the outer face plate 9. The usual actuatingconnection between the handle 15 and the lockbolts 14 is situated withinthe concrete bed or wall 10. The ends of the locking-bolts 14, when thesame are thrown to lock the outer door of the safe, register with andfit within the socket thimbles 16, embedded within the jamb edge of thebody 3 of the safe.

The usual metal door and jamb frames, with the cast steps are omitted inthe described constructed fireproof safe, the door and jamb steps 1818being formed directly in the face of the concrete body 3 of the safe,and the separating wall or bed 10 of the outer door, the steps so formedbeing exact counterparts.

When the outer door is closed, the inner face plate 8 bears against theinwardly flanged edge portion 19 of the light metallic door frame 20,for the inner door 7 of the interior safe compartment or chamber 5. Whenthe outer safe door is thus positioned, an union between the edge of thesaid door and the door jamb portion of the concrete body of the safe isobtained by means of the anchor clips 2122, which form interlockingtongues. These said anchor clips 2122 are embedded respectively in thebody of the safe, and the concrete wall or bed 10 of the outer door ofthe safe.

The outer door of the safe is carried on the crane or duplex hinge 23,which is of the usual construction, the said door being moved into andout of the door frame opening by means of the pressure bar 23.

In Fig. 3 of the drawings, the tie angle bars or straps 1112 aredispensed with, and in place of the same the tie bolts 2424 areemployed, which bolts project respectively from the door plates 89, andare embedded within the concrete wall or bed 10, passing through orbetween the rods 17 which serves to reinforce the concrete wall or bed10 interposed between the face lates 89 of the outer door of the safe.nstead of the reinforcing wire webbing for the wall or bed 10, disclosedin Fig. 2 of the drawings, the reinforcing rods 17 are used, althoughexpanded metal may be employed. In fact, expanded metal may be employedin lieu of the reinforcing wire, basket or casing 2 for the concretebody of the safe.

In the manufacture of the described fireproof safe, a suitable mold forthe outer door is provided. Into this mold the front plate 9 of theouter door, together with its tie bars, straps or bolts is placed. Themold is then filled with concrete to approximately onehalf the thicknessof the door, when the intermediate reinforcing wire 17, together withthe inner face plate 8 of the door with its tie bars, straps or bolts isplaced in position, and the filling in of the concrete to form the wallor bed 10 continued with until the said wall or bed 10 is formed. Timeis then given for the concrete to set, when the mold is removed and theedge of the door surfaced with a graphite mixture or other non-adhesivesubstance, to insure against cohesion of the door with the jamb frameportion of the concrete body of the safe when the said body is formed.The skeleton angle frame 1, with its reinforcing wiring 2 is thenpositioned within a suitable mold, and the concrete body formed aroundthe metallic box 4, which forms the inner safe compartment or cham ber5. The concrete body of the safe is thus molded to or formed around itsdoor, being left in the mold until the concrete becomes sufficientlyhard to permit of the removal of the mold. The safe as thus molded iscomlete except as to its exterior finish, which finish is given byforming the outer panels 25 of cement, flush with the surface of theangle frame 1. The general appearance of the safe is greatly enhanced bysurfacing the cement panels with litharge enamel, or other suitableenamel, and painting and varnishing the exposed surfaces of the safe. Asafe is thus produced combining utility, economy of construction, andfireproof qualities to the highest degree.

Having thus described the invention what is claimed as new and desiredto be protected by Letters Patent is 1. A fireproof safe, the samecomprising a skeleton angle frame, a reinforced lining therefor, aninner metallic box forming the interior compartment of the safe, aconcrete body within which said box and the reinforced lining for theangle frame is embedded, and air compartments interposed between thewalls of the said box and the concrete body of the safe.

2. A fireproof safe free of metallic door and jamb frames, the samecomprising a skeleton angle frame, a body of concrete forming the wallof the safe, an interior safe compartment within the concrete body, adoor for closing the opening of the concrete body, the said doorconsisting of an inner and an outer face plate, and a concrete wall orbed interposed between the said face plates.

3. A fireproof safe free of metallic door and jiamb frames, the samecomprising a skeleton angle frame, a reinforced lining for the angleframe, an inner box forming the interior compartment of the safe, aconcrete body for the safe within which the reinforced lining and thesaid box are embedded, outer cement panels for the safe approximatelyflush with the surfaces of the angle frame, a door for the safe, thesameconsisting of an innerand'an outer face plate, and a concrete wall orbed interposed between the said plates, and union pieces extended fromthe face plates and embedded within the concrete wall or bed between thesaid plates.

4. In a safe of the described character, the combination with theconcrete body thereof, of a door composed of an inner and an outerfaceplate and a concrete wall or bed interposed between the said faceplates and to which the plates are held, and anchor clips embeddedrespectively in the edge of the concrete body of the safe and the dooredge of the concrete wall or bed of the door.

5. A fireproof safe, the same comprising a skeleton angle frame, aninner metallic box forming the interior compartment of the safe, aconcrete body within which said box is embedded, and which body ofconcrete forms the outer wall of the safe, and air compartmentsinterposed between the walls of thp said box and the concrete body ofthe sa e.

In testimony whereof we have signed our names to this specification inthepersence of two subscribing witnesses.

THOMAS M. BRINTNALL. NELSON R. DOOLITTLE. Witnesses:

N. A. ACKER, D. B. RICHARDS.

